Vidicode Argus Basic Programmers Reference Manual

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
238
  
TRACE    trace program execution 
TRACE provides a debugging aid which monitors program execution by printing the number of each line as it is executed.  
Line numbers are printed in square brackets to the port requested, or the default output port as defined by OPORT. 
 
Events and errors are printed as text between the line numbers. 
 
For example: 
10 TRACE ON
20 READ x
30 FOR i=1 TO x
40...

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
239
  
TRIM$    remove spaces 
TRIM$ is used to remove all spaces from a string. 
Examples: 
PRINT TRIM$  Test 
Adjusted$ = TRIM$ Input$
Syntax: 
[string-var] = TRIM$ [string]
See also: 
LTRIM$, RTRIM$ 

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
240
  
UCASE    convert ASCII to uppercase 
UCASE is used to calculate the upper case ASCII value of a character. 
Examples: 
PRINT UCASE 97
B=UCASE98
Syntax: 
[num-var] = UCASE [num]
See also: 
LCASE$, LCASE, UCASE$
  

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
241
  
UCASE$    convert string to uppercase 
UCASE$ is used to convert all characters in a string to upper case. 
 
Characters that are already in upper case remain unchanged. 
 
This command (or LCASE$) is frequently needed to standardize keyboard input. 
Examples: 
PRINT UCASE$ QwErTy
result$ = UCASE$ input$
Syntax: 
[string-var] = UCASE$ [string]
See also: 
LCASE, LCASE, UCASE$ 

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
242
  
VAL    convert string to number 
VAL is used to convert a string expression representing a numeric value into the actual value it represents. 
 
The string may comprise any expression resulting in a numeric value, providing that this does not exceed 32767 - the largest 
integer value that may be used on the modem. 
 
In the following example the integer variable Code is set to 345:...

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
243
  
VAL$    convert number to string 
VAL$is used to convert a numeric value or expression into its string form. 
This is the reverse of the VAL function described earlier. 
 
In the following example the string variable Code$ is set to 276: 
 code$=VAL$(300-24) 
The tilde symbol ~ may be used to convert numbers to hexadecimal format before being converted into strings. 
Examples: 
Title$=Number...

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
244
  
VOICE    set modem to receive voice 
The VOICE command puts the modem-chip in voice-mode and prepares it for playback or recording.  If the modem-chip 
was in sleep-mode (low power), it is first waken up (see RESET MODEM 2).  After VOICE, the commands PLAY,
RECORD or SOUND MODEM can be used. 
 
Controlling the microphone,  Automatic Gain Control (AGC) and other features is done with the PEEK...

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
245
  
 
Syntax: 
VOICE
See also: 
PLAY, RECORD, RESET MODEM 2, SPEAKER, VOLUME 

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
246
  
VOLUME    set loudspeaker volume 
This command is used to set the volume level of the modems internal loudspeaker and the volume in the headset at the 
same time.  The levels 1, 2 or 3 can be set only. 
 
The VOLUME command itself nevers has immediate effect. It must always be followed by SPEAKER ON. 
Controlling the volume of the headset directly must be done with a POKE command (see VOICE)....

ARGUS Programmable Modem 
BASIC Programmers Reference Manual 
© 1990 - 1997 Vidicode Datacommunicatie BV 
247
  
WAIT    pause program execution 
WAIT is used to introduce a delay in program execution.  A single parameter is used to specify the length of the delay in one 
hundredths of a second.  For example: 
WAIT 120
will pause program execution for 1.2 seconds before execution resumes normally at the command following WAIT. 
 
Alternatively the delay may be specified in seconds or minutes.  Then the...